| /* |
| * Copyright 1999-2002,2004,2005 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package dom; |
| |
| import java.io.IOException; |
| import java.io.OutputStreamWriter; |
| import java.io.PrintWriter; |
| |
| import org.apache.xerces.parsers.DOMParser; |
| import org.apache.xerces.xni.Augmentations; |
| import org.apache.xerces.xni.NamespaceContext; |
| import org.apache.xerces.xni.QName; |
| import org.apache.xerces.xni.XMLAttributes; |
| import org.apache.xerces.xni.XMLLocator; |
| import org.apache.xerces.xni.XMLString; |
| import org.apache.xerces.xni.XNIException; |
| import org.w3c.dom.Attr; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * A sample of Adding lines to the DOM Node. This sample program illustrates: |
| * - How to override methods from DocumentHandler ( XMLDocumentHandler) |
| * - How to turn off ignorable white spaces by overriding ignorableWhiteSpace |
| * - How to use the SAX Locator to return row position ( line number of DOM element). |
| * - How to attach user defined Objects to Nodes using method setUserData |
| * This example relies on the following: |
| * - Turning off the "fast" DOM so we can use set expansion to FULL |
| * @version $Id$ |
| */ |
| |
| public class DOMAddLines extends DOMParser { |
| |
| /** Print writer. */ |
| private PrintWriter out; |
| static private boolean NotIncludeIgnorableWhiteSpaces = false; |
| private XMLLocator locator; |
| |
| |
| public DOMAddLines( String inputName ) { |
| //fNodeExpansion = FULL; // faster than: this.setFeature("http://apache.org/xml/features/defer-node-expansion", false); |
| |
| try { |
| this.setFeature( "http://apache.org/xml/features/dom/defer-node-expansion", false ); |
| this.parse( inputName ); |
| out = new PrintWriter(new OutputStreamWriter(System.out, "UTF8")); |
| } catch ( IOException e ) { |
| System.err.println( "except" + e ); |
| } catch ( org.xml.sax.SAXException e ) { |
| System.err.println( "except" + e ); |
| } |
| } // constructor |
| |
| /** Prints the specified node, recursively. */ |
| public void print(Node node) { |
| // is there anything to do? |
| if ( node == null ) { |
| return; |
| } |
| |
| String lineRowColumn = (String ) ((Node) node).getUserData("startLine"); |
| |
| int type = node.getNodeType(); |
| switch ( type ) { |
| // print document |
| case Node.DOCUMENT_NODE: { |
| out.println( lineRowColumn + ":" + "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
| print( ((Document)node).getDocumentElement()); |
| out.flush(); |
| break; |
| } |
| |
| // print element with attributes |
| case Node.ELEMENT_NODE: { |
| out.print( lineRowColumn + ":" + '<'); |
| out.print(node.getNodeName()); |
| Attr attrs[] = sortAttributes(node.getAttributes()); |
| for ( int i = 0; i < attrs.length; i++ ) { |
| Attr attr = attrs[i]; |
| out.print(' '); |
| out.print(attr.getNodeName()); |
| out.print("=\""); |
| out.print( attr.getNodeValue()); |
| out.print('"'); |
| } |
| out.print('>'); |
| NodeList children = node.getChildNodes(); |
| if ( children != null ) { |
| int len = children.getLength(); |
| for ( int i = 0; i < len; i++ ) { |
| print(children.item(i)); |
| } |
| } |
| break; |
| } |
| |
| // handle entity reference nodes |
| case Node.ENTITY_REFERENCE_NODE: { |
| out.print('&'); |
| out.print(node.getNodeName()); |
| out.print(';'); |
| break; |
| } |
| |
| // print cdata sections |
| case Node.CDATA_SECTION_NODE: { |
| out.print("<![CDATA["); |
| out.print(node.getNodeValue()); |
| out.print("]]>"); |
| break; |
| } |
| |
| // print text |
| case Node.TEXT_NODE: { |
| out.print( node.getNodeValue()); |
| break; |
| } |
| |
| // print processing instruction |
| case Node.PROCESSING_INSTRUCTION_NODE: { |
| out.print("<?"); |
| out.print(node.getNodeName()); |
| String data = node.getNodeValue(); |
| if ( data != null && data.length() > 0 ) { |
| out.print(' '); |
| out.print(data); |
| } |
| out.print("?>"); |
| break; |
| } |
| } |
| |
| if ( type == Node.ELEMENT_NODE ) { |
| out.print("</"); |
| out.print(node.getNodeName()); |
| out.print('>'); |
| } |
| |
| out.flush(); |
| |
| } // print(Node) |
| |
| |
| /** Returns a sorted list of attributes. */ |
| private Attr[] sortAttributes(NamedNodeMap attrs) { |
| |
| int len = (attrs != null) ? attrs.getLength() : 0; |
| Attr array[] = new Attr[len]; |
| for ( int i = 0; i < len; i++ ) { |
| array[i] = (Attr)attrs.item(i); |
| } |
| for ( int i = 0; i < len - 1; i++ ) { |
| String name = array[i].getNodeName(); |
| int index = i; |
| for ( int j = i + 1; j < len; j++ ) { |
| String curName = array[j].getNodeName(); |
| if ( curName.compareTo(name) < 0 ) { |
| name = curName; |
| index = j; |
| } |
| } |
| if ( index != i ) { |
| Attr temp = array[i]; |
| array[i] = array[index]; |
| array[index] = temp; |
| } |
| } |
| |
| return (array); |
| |
| } // sortAttributes(NamedNodeMap):Attr[] |
| |
| /* Methods that we override */ |
| |
| /* We override startElement callback from DocumentHandler */ |
| |
| public void startElement(QName elementQName, XMLAttributes attrList, Augmentations augs) |
| throws XNIException { |
| super.startElement(elementQName, attrList, augs); |
| |
| Node node = null; |
| try { |
| node = (Node) this.getProperty( "http://apache.org/xml/properties/dom/current-element-node" ); |
| //System.out.println( "The node = " + node ); TODO JEFF |
| } |
| catch( org.xml.sax.SAXException ex ) |
| { |
| System.err.println( "except" + ex );; |
| } |
| if( node != null ) |
| node.setUserData( "startLine", String.valueOf( locator.getLineNumber() ), null ); // Save location String into node |
| } //startElement |
| |
| /* We override startDocument callback from DocumentHandler */ |
| |
| public void startDocument(XMLLocator locator, String encoding, |
| NamespaceContext namespaceContext, Augmentations augs) throws XNIException { |
| super.startDocument(locator, encoding, namespaceContext, augs); |
| this.locator = locator; |
| Node node = null ; |
| try { |
| node = (Node) this.getProperty( "http://apache.org/xml/properties/dom/current-element-node" ); |
| } |
| catch( org.xml.sax.SAXException ex ) |
| { |
| System.err.println( "except" + ex );; |
| } |
| |
| if( node != null ) |
| node.setUserData( "startLine", String.valueOf( locator.getLineNumber() ), null ); // Save location String into node |
| } //startDocument |
| |
| |
| public void ignorableWhitespace(XMLString text, Augmentations augs) throws XNIException |
| { |
| if(! NotIncludeIgnorableWhiteSpaces ) |
| super.ignorableWhitespace( text, augs); |
| else |
| ;// Ignore ignorable white spaces |
| }// ignorableWhitespace |
| |
| |
| |
| // |
| // Main |
| // |
| |
| /** Main program entry point. */ |
| public static void main(String argv[]) { |
| // is there anything to do? |
| if ( argv.length == 0 ) { |
| printUsage(); |
| System.exit(1); |
| } |
| // check parameters |
| |
| for ( int i = 0; i < argv.length; i++ ) { |
| String arg = argv[i]; |
| |
| // options |
| if ( arg.startsWith("-") ) { |
| if ( arg.equals("-h") ) { |
| printUsage(); |
| System.exit(1); |
| } |
| if (arg.equals("-i")) { |
| NotIncludeIgnorableWhiteSpaces = true; |
| continue; |
| } |
| |
| } |
| // DOMAddLine parse and print |
| |
| DOMAddLines domAddExample = new DOMAddLines( arg ); |
| Document doc = domAddExample.getDocument(); |
| domAddExample.print( doc ); |
| |
| } |
| } // main(String[]) |
| |
| /** Prints the usage. */ |
| private static void printUsage() { |
| System.err.println("usage: jre dom.DOMAddLines (options) uri ..."); |
| System.err.println(); |
| System.err.println(" -h Display help screen."); |
| System.err.println(" -i Don't print ignorable white spaces."); |
| |
| } // printUsage() |
| |
| } |